EP 2577499 A2 20130410 - MOTION DETECTION TECHNIQUES FOR IMPROVED IMAGE REMOTING
Title (en)
MOTION DETECTION TECHNIQUES FOR IMPROVED IMAGE REMOTING
Title (de)
BEWEGUNGSERKENNUNGSVERFAHREN FÜR VERBESSERTE BILDENTFERNUNG
Title (fr)
TECHNIQUES DE DÉTECTION DE MOUVEMENT DESTINÉES À UNE IMAGE À DISTANCE AMÉLIORÉE
Publication
Application
Priority
- US 79348610 A 20100603
- US 2011037410 W 20110520
Abstract (en)
[origin: US2011299785A1] Techniques are disclosed for acceleration techniques for improved image remoting. A rolling 2D hash of a first image sent to a client is computed. When the server has a second image to send to the client, it calculates a rolling 2D hash of the new image. It also calculates “pivot points” for the images based on the rolling 2D hashes. Based on the pivot points, it determines possible matching hash windows between the two images that correspond to window moves or scrolls. Where a match is confirmed, it determines whether a “larger” a larger matching rectangle exists between the two images. It then instructs the client to display the matching rectangle that exists in the first image that the client has in the appropriate location in the second image, thereby saving the bandwidth requirements to re-transmit it to the client.
IPC 8 full level
G06F 9/44 (2006.01); G06F 17/21 (2006.01); G06F 15/16 (2006.01); G06F 17/00 (2006.01); G06T 1/00 (2006.01)
CPC (source: EP US)
G06F 3/1454 (2013.01 - EP US); G06F 9/452 (2018.02 - US); G06F 16/40 (2019.01 - US); G06F 16/54 (2019.01 - EP); G06F 16/954 (2019.01 - US); G09G 2320/106 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 2011299785 A1 20111208; US 8417039 B2 20130409; EP 2577499 A2 20130410; EP 2577499 A4 20170412; EP 2577499 B1 20211103; WO 2011153005 A2 20111208; WO 2011153005 A3 20120405
DOCDB simple family (application)
US 79348610 A 20100603; EP 11790188 A 20110520; US 2011037410 W 20110520